USA As Represented by Secretary of the Navy

Michael D Jevnager

Robert S Janus

Raymond P Pineault

The present invention provides methods for making an acoustic transducer. In one possible embodiment, a rigid inner shell is provided with a conductive exterior surface. Masking material is applied onto a first location on the conductive exterior surface of the rigid inner shell. Piezoelectric material is deposited over the conductive exterior surface of the rigid inner shell and the masking material. Conductive material is deposited onto the piezoelectric material. The masking material is removed. A first signal lead is attached to the first location on the conductive exterior surface of the rigid inner shell. A second signal lead is attached to the conductive material.

Rapid fabrication techniques for arbitrary shape piezoelectric transducer sensors

An electro acoustic transducer has a housing having an axial threaded bore. A transducer driver element is axially aligned in the bore and has a first end mounted on an electrically conductive holder that is axially displaceable by a conductive screw member. A hemisphere on the other end of the driver element contacts a diaphragm for radiating acoustic signals. An electrical connector has a conductive coil spring coupled to the screw member and is electrically connected to the first end of the driver element via the coil spring, screw member, holder, and mounting plug. Another electrical connector is connected to the other end of the driver element via a conductive front plate, diaphragm, and hemisphere in one embodiment or a flexible lead in another embodiment. In both embodiments, the electrical connectors couple electrical driving signals to the driver elements to cause the driver elements to mechanically vibrate.

Growing community of inventors

Rindge, NH, United States of America

Michael D Jevnager